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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.